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hollow

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verb British English pronunciation: hollow /ˈhɒləʊ/ 
Word Forms
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present tense
I/you/we/theyhollow
he/she/ithollows
present participlehollowing
past tensehollowed
past participlehollowed

phrasal verb

hollow out

[transitive]
Word Forms
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present tense
I/you/we/theyhollow out
he/she/ithollows out
present participlehollowing out
past tensehollowed out
past participlehollowed out
  1. 2
    to make or build something by making a hole in something

    The amphitheatre had been hollowed out of the steep hillside.

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